參數(shù)資料
型號(hào): XRT75L00DIV-F
廠商: Exar Corporation
文件頁(yè)數(shù): 2/92頁(yè)
文件大?。?/td> 0K
描述: IC LIU E3/DS3/STS-1 SGL 52TQFP
標(biāo)準(zhǔn)包裝: 96
類(lèi)型: 線路接口裝置(LIU)
驅(qū)動(dòng)器/接收器數(shù): 1/1
規(guī)程: DS3,E3,STS-1,SONET
電源電壓: 3.135 V ~ 3.465 V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 52-LQFP
供應(yīng)商設(shè)備封裝: 52-TQFP(10x10)
包裝: 托盤(pán)
XRT75L00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.2
5
51
TRING
O
Transmit Ring Output
The XRT75L00D uses this pin along with TTIP to transmit a bipolar signal to the
line using a 1:1 transformer.
1TxLEV
I
Transmit Line Build-Out Enable/Disable Select
This input pin is used to enable or disable the Transmit Line Build-Out circuit.
Setting this pin to "High" disables the Line Build-Out circuit. In this mode, par-
tially-shaped pulses are output onto the line via the TTIP and TRING output
pins.
Setting this pin to "Low" enables the Line Build-Out circuit. In this mode, shaped
pulses are output onto the line via the TTIPand TRING output pins.
To comply with the Isolated DSX-3/STSX-1 Pulse Template Requirements per
Bellcore GR-499-CORE or Bellcore GR-253-CORE:
1. Set this pin to "1" if the cable length between the Cross-Connect and the
transmit output is greater than 225 feet.
2. Set this pin to "0" if the cable length between the Cross-Connect and the
transmit output is less than 225 feet.
This pin is active only if the following two conditions are true:
a. The XRT75L00D is configured to operate in either the DS3 or SONET STS-1
Modes.
b. The XRT75L00D is configured to operate in the Hardware Mode.
NOTES:
1.
This pin is internally pulled down.
2.
If the XRT75L00D is configured in HOST mode, this pin may be tied to
GND.
TRANSMIT INTERFACE
PIN #SIGNAL NAME
TYPE
DESCRIPTION
相關(guān)PDF資料
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